baber/WOPTO huggingface dataset:
Patent CA-2018548-A1 (CA)
Title: Composition
Inventor: AUSTIN PETER W
IPC: C12N9/00
Filed: 1990-06-08
Abstract: ABSTRACT                   COMPOSITION         A medium susceptible to spoilage enzymes contains a halogen compound selected from alkali metal tetrahaloaurate, a heterocyclic compound containing at least two ring nitrogen atoms and at least one nitrogen-halogen bond, an iodonium compound and a sulphonamide containing at least one nitrogen-halogen bond.  The medium may be 2 an aqueous solution containing soluble cellulose in which the spoilage enzyme is cellulase, for example as in an aqueous paint.  the presence of the halogen compound reduces the extent of thinning of the solution.  Deterioration due to lipases, proteases or amylase can also be reduced.
Patent CA-2018984-A1 (CA)
Title: Lock having maid lockout and deadbolt protector
Inventor: TULLY CLAY E
IPC: E05B47/06
Filed: 1990-06-14
Abstract: LOCK HAVING MAID LOCKOUT AND DEADBOLT PROTECTOR    ABSTRACT OF THE DISCLOSURE     This look, which may be coded-keycard operated, has a set-table device on the inside of the door by which the maid, for instance, can be locked out. The lookout setting device is pre-ferably in the form of a pushbutton or deadbolt turnpiece which manipulates a switch in the code-receiving circuitry.  The lock-out setting is automatically cancelled when the latch is re-tracted.  When the setting device comprises a deadbolt turnpiece, the deadbolt is biased toward retracted position and the setting device holds the deadbolt extended. When the latch is retracted in the latter version, the  retraction cancels the lockout setting and permits the deadbolt to retract under the power or the dead-bolt biasing spring.  The invention also includes a non-code-operated embodiment in which a deadbolt is spring driven to retracted position as the latch is retracted in latching to protect the deadbolt, lock and door frame.
Patent CA-2019181-A1 (CA)
Inventor: DUSSEUX THIERRY
IPC: H01Q5/00
Filed: 1990-06-18
Abstract: PRECIS DE LA DIVULGATION:           Elément rayonnant  diplexant, comprenant au moins un premier élément rayonnant dans lequel circulent deux courants électriques rayonnants espacés l'un de l'autre, et au moins un second élément rayonnant dans lequel circulent deux  courants  magnétiques  rayonnants  espacés  l'un  de l'autre.  L'invention trouve une application notamment dans le domaine des télécommunications spatiales.
Patent CA-2020480-A1 (CA)
Inventor: SMITH MICHAEL P
IPC: G01N33/24
Filed: 1990-07-05
Abstract: A collective fluid inclusions volatiles sample is released from each of a plurality of sedimentary rock samples and analyzed as it is being released to determine composition thereof.  Compositions are used for mapping the earth's subsurface.
Patent CA-2022494-A1 (CA)
IPC: C23C2/00
Filed: 1990-08-01
Abstract: ABSTRACT OF THE DISCLOSURE     A continuous dip-plating apparatus for a steel strip has a pot containing a metal melt which forms a plating bath, a device for causing the steel strip to run through the plating bath such that the steel strip makes a turn around a sink roll in the plating bath so as to be pulled upwardly above the surface of the plating bath, and a wiping device disposed above the pot and adapted for adjusting the amount of deposition of the metal melt to the steel strip. The apparatus further has a pair of flow regulating plates for suppressing deposition of dross to the steel strip.  The flow regulating plates are arranged in parallel with and in the vicinity of the portion of the steel strip running upwardly through the plating bath with the upper ends of the flow regulating plates being disposed substantially at the same level as the plating bath.  Preferably, the height of the portion of each flow regulating plate below the level of the surface of the plating bath is not smaller than 50 mm, while the distance between each flow regulating plate and the steel strip is preferably not greater than 80 mm.  It is also preferred that the upper end of each flow regulating plate is positioned between a level which is 10 mm below the surface of the plating bath and a level which is 50 mm above the surface of the plating bath.
Patent CA-2024457-A1 (CA)
Title: Rotary tool made of inorganic fiber-reinforced plastic
Inventor: KIKUTANI YOSHIFUMI
IPC: B24D3/30
Filed: 1990-08-31
Abstract: A rotary tool for cutting, drilling, grinding, or polishing metallic or non-metallic materials is made of a compact material, which consists of an inorganic fiber reinforced plastic containing 50 to 81 volume  % of inorganic long fibers selected from the following group: aluminous fibers, boronic fibers, silicon carbide fibers, and silicon nitride fibers, the remaining portion of the compact material consisting of a thermosetting resin matrix.
Patent CA-2025010-A1 (CA)
Title: Polyurethane elastomers of low hardness
Inventor: WEIDER RICHARD
IPC: C08G18/42
Filed: 1990-09-10
Abstract: Mo3449 LeA 27,126 POLYURETHANE ELASTOMERS OF LOW HARDNESS                   ABSTRACT OF THE DISCLOSURE           This invention relates to substantially linear thermoplastic polyurethanes prepared by a process comprising reacting organic polyisocyanates; at least one polyester derivative having at least two isocyanate reactive hydrogen atoms, wherein said polyester derivative is a polyester of an .alpha.,.omega.-dicarboxylic acid containing a total of at least 16 carbon atoms and a non-vicinal diol, in an amount such that the proportion of the .alpha.,.omega.-dicarboxylic acid is greater than 35% by weight based on the total quantity of thermoplastic polyurethane; and chain lengthening agents having no phenolic OH groups.  This invention also relates to the process used to prepare such thermoplastic polyurethanes.          This invention further relates to the use of the thermoplastic polyurethanes for medical purposes.     Mo3449
Patent CA-2025188-A1 (CA)
Title: Methods for generating chlorine dioxide and compositions for disinfecting
Inventor: RIPLEY PAUL S
IPC: C11D3/00
Filed: 1990-09-12
Abstract: ABSTRACT OF THE DISCLOSURE A method for generating chlorine dioxide which involves con-tacting a stable precurosr with a transition metal in a buffered aque-ous medium.
Patent CA-2029325-A1 (CA)
Title: Fluorinated curable copolymer; process for preparing the same anol, its use in varnishes and paints
Inventor: KAPPLER PATRICK
IPC: C08F16/16
Filed: 1990-11-05
Abstract: Crosslinkable copolymer containing the residues from copolymerisation of a fluoro monomer, of a hydroxylated allyl ether and of a vinyl ether, characterised in that: 
 
  a) the fluoro monomer residues originate from the combined use of vinylidene fluoride and of tetrafluoroethylene, 
  b) the allyl ether residues originate from one of the compounds of formula: 
<IMAGE>
 
 
  R being: CH2OH 
  R1 being: H or CH3 
  R2 being: 
<IMAGE>
 
  with "p" a number chosen from 0 to 3 
  and X being (CH2)q-O 
  with "q" a number chosen from 1 to 3, 
  R5 and R6, which are identical or different, being chosen from CH2OH, CH2-CH2-OH, CH3, C2H5 
  R3 and R4 being H or OH, but not simultaneously H, and 
  "n" and "m", which are identical or different, being numbers chosen from 0 to 2. 
 
  c) the vinyl ether residues originate from one of the compounds of formula: CH2=CH-O-R7, in which R7 is a linear or branched or cyclic alkyl radical. 
 
<??>This crosslinkable copolymer is obtained by solution copolymerisation in an organic solvent. In solution in a suitable solvent, this copolymer is employed in paints and varnishes.
Patent CA-2030375-A1 (CA)
Title: Process for the optical resolution of threo-2-hydroxy-3-(2'-aminophenylthio)-3-(4"methoxy-phenyl) -propionic acid
Inventor: RIZZI AMLETO
IPC: C07C319/28
Filed: 1990-11-20
Abstract: "PROCESS FOR THE OPTICAL RESOLUTION OF THREO-2-HYDROXY-3-(2'-AMINOPHENYLTHIO)-3-(4"-METHOXYPHENYL)-PROPIONIIC ACID"                     Abstract The  present invention relates to a process for  the separation  of the enantiomers of  threo-2-hydroxy-3-(2'-aminophenylthio)-3-(4"-methoxyphenyl)-propionic     acid, which  is  an important intermediate in the synthesis  of pharmacologically  active  compounds,  by  means  of  the direct  crystallization of the relevant  cyclohexylaminic salt.     According   to   a  preferred  form   of   practical embodiment of the present invention,  the optically  pure acid   is   recovered   as  the  hydrochloride   of   the corresponding methyl ester
Patent CA-2033082-A1 (CA)
Title: Interleukin-7 receptors
Inventor: PARK LINDA S
IPC: C07K14/705
Filed: 1990-05-23
Abstract: TITLE                     Interleukin-7 Receptors ABSTRACT OF THE DISCLOSURE Mammalian Interleukin-7 receptor proteins, DNAs and expression vectors encoding mammalian IL-7 receptors, and processes for producing mammalian IL-7 receptors as products of recombinant cell culture, are disclosed.
Patent CA-2033365-A1 (CA)
Inventor: KIM DAI W
IPC: A61L15/60
Filed: 1990-12-28
Abstract: (g)  Abstract of the Disclosure A nonwoven wet-lay superabsorbent  material produced by  the process of blending  superabsorbent polymer  particulates with  a liquid  to  form  a  slurry,  mixing  fibers  with that slurry, filtering that slurry/fiber  mixture to remove  a portion of  the liquid and drying the superabsorbent slurry/fiber mixture to form a nonwoven wet-lay superabsorbent  material is disclosed in  this invention.   The  nonwoven  wet-lay  material  produced  by  this process can be of great use where high fluid absorption  capacity is important and where simplicity and ease of preparation of  the material is useful.            PAT.2/SRC:dg
Patent CA-2034394-A1 (CA)
Title: Dental instrument including laser device and electronic video dental camera
Inventor: COOPER DAVID H
IPC: A61C1/08
Filed: 1991-01-17
Abstract: A novel dental instrument is taught which includes both a laser device and an electronic video dental camera. The teachings of this invention overcome the disadvantages of prior art dental laser instruments which do not provide for other than direct viewing of the treatment area by the dentist, as well as the disadvantages of attempting to use such prior art dental laser instruments together with typical prior art viewing devices such as dental mirrors and dental cameras of the prior art. The dental instrument includes a laser device and an electronic video dental camera is provided having a single handle and a convenient shape, thereby being readily manipulated by dentists who are universally familiar with the manipulation of prior art dental tools. The dental instrument includes a handle to be held by the user, a distal portion which is to be placed inside the patient's mouth, a laser light emission port located at or near the distal end, means for transporting laser light from an external laser source to the laser light emission port, and a camera head located at or near the distal end of the device, with the camera head being formed in order to provide a field of view which includes the portion of the patient which is being treated by the laser light emanating from the laser light emission port.
Patent CA-2035431-A1 (CA)
Title: Oxazole compounds, their production and use
Inventor: SOHDA TAKASHI
IPC: C07D263/34
Filed: 1991-01-31
Abstract: ABSTRACT OF THE DISCLOSURE      An oxazole compound having the formula (I):                                             (I) in which A is a group of the formula -CH2OR2 (wherein R2  is  a  hydrogen  atom,  an  optionally  substituted hydrocarbon   residue,   an   optionally   substituted heterocyclic group or an acyl group) or an aldehyde group, B is an optionally substituted phenyl group, R1 is a hydrogen atom or an optionally substituted alkyl group, and n is an integer of 0 to 6, provided that when n is 2, R1 is an optionally substituted alkyl group, or its salt, which is useful as a therapeutic agent  for   metabolic   bone   diseases   including osteoporosis.
Patent CA-2035728-A1 (CA)
Title: Device and methods for detecting microorganisms
Inventor: TURNER JAMES E JR
IPC: C12M1/34
Filed: 1991-02-05
Abstract: An instrument and a sealable vessel for detecting the presence of microorganisms in a specimen, the vessel containing a liquid culture medium communicating with a sensor means containing an indicator medium therein. Changes in the indicator medium resulting from pH change or change in CO2 concentration in the medium are detected from outside the vessel.
Patent CA-2038019-A1 (CA)
Title: Pipeline pig and method of cleaning a pipe
Inventor: SIVACOE ORLANDE
IPC: B08B9/04
Filed: 1991-03-12
Abstract: Pipe cleaning pigs have a relatively short life expectancy and are ill adapted for cleaning any deposits harder than candle wax.  A relatively simple solution to these problems involves a pipe cleaning pig including an elongated, one-piece, flexible, cylindrical body with hemispherical ends annular ribs integral with and extending outwardly from the body, longitudinal ribs extending between the annular ribs for strengthening the annular ribs and defining recesses with such annular ribs, and teeth in the recesses for engaging the interior of a pipe when the pig is moved through the pipe under fluid pressure.
Patent CA-2038179-A1 (CA)
Title: Stabilization of phenoxarsine microbiocides
Inventor: ANDERSON DONALD F
IPC: A01N55/02
Filed: 1991-03-13
Abstract: STABILIZATION OF PHENOXARSINE MICROBIOCIDES               ABSTRACT OF THE DISCLOSURE  Phenoxarsine compositions (e.g., 10,10'-oxybisphenox-arsine) are stabilized against ultraviolet light decomposition by using a stabilizer mixture of a 2-hydroxybenzophenone and a 3,5-di-tert-butyl-4-hydroxybenzoate.
Patent CA-2039327-A1 (CA)
Title: Preparation of 2-(3-aminopropyl)-cycloalkylamines
Inventor: MERGER FRANZ
IPC: C07C209/26
Filed: 1991-03-28
Abstract: A process for the preparation of a 2-(3-aminopropyl)-cycloalkylamine of the general formula I (see formula I) in which the subscript n is an integer from 1 to 4, from a 2-(2-cyano-ethyl)-cycloalkanone of the general formula II (see formula II) in which the subscript n has the meaning stated, wherein the following stages are carried out in discrete reaction cham-bers: a) the 2-(2-cyanoethyl)-cycloalkanone of formula II is reacted in a first reaction chamber with excess ammonia over an acidic hetero-geneous catalyst at a temperature of from 20° to 150°C and a pressure of from 15 to 500 bar, and b) in a second reaction chamber, the reaction product from stage a) is hydrogenated at a temperature of from 60° to 150°C and a pressure of from 50 to 300 bar in the presence of excess ammonia over a catalyst containing cobalt, nickel, ruthenium, and/or some other noble metal, which catalyst optionally contains a basic component or is supported on neutral or basic supporting material, and the novel compound 2-(3-aminopropyl)-cyclopentylamine.
Patent CA-2039726-A1 (CA)
Inventor: SOWINSKI ALLAN F
IPC: G03C1/035
Filed: 1990-10-10
Abstract: A color negative photographic recording material is described in which low emulsion coverage tabular grain silver halide emulsion imaging units are employed.  The silver halide emulsion in at least one of the units comprises grains having a tabularity of between about 50 and 25,000.  The imaging unit thickness is less than about 4.0 µm, using a total of no more than 2.0 parts by weight of silver per part of coupler.  The imaging unit yields a density of at least 2.0 when exposed and processed.
Patent CA-2039976-A1 (CA)
Title: Addressable control system for catv program distribution
Inventor: MARTIN THOMAS F
IPC: H04N7/16
Filed: 1991-04-08
Abstract: Remote control of subscriber access to premium programs on a cable television system or the like is provided. A signal path carries program signals received from a cable television system. A switchable port coupled to the signal path is identified by a logical channel number. First data are received and stored from the cable television system assigning a service code to the logical channel. Second data are received and stored from the cable television system identifying authorized service nodes. The assigned logical channel service code is periodically compared to the stored authorized service codes to determine if the logical channel is authorized. The port is switched to provide or deny access to a program signal carried on the signal path, depending on whether the service code assigned to the logical channel identifying the port is authorized. A plurality of ports can be provided to enable subscriber access to different premium services. Each port can couple a trap to the signal path, alternately bypass the trap, or alternately open the signal path to disconnect a subscriber.
Patent CA-2040110-A1 (CA)
Title: Process for preparing pyridine and quinoline derivatives
Inventor: ELANGO VARADARAJ
IPC: C07D213/80
Filed: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE The present invention pertains to a method of preparing substituted and unsubstituted N-hydroxy-2-aminobutane diacid derivatives which can be dehydrated to 2-aminobut-2-ene dioic acid derivatives, which can be subsequently converted to pyridine and quinoline derivatives.
Patent CA-2042115-A1 (CA)
Title: Wraparound multipack with carrying handle
Inventor: NEGELEN EMANUEL
IPC: B65D71/64
Filed: 1991-05-08
Abstract: A carton accommodating a plurality of articles, such as bottles (B) comprises a top (14, 16, 18, 20) a base and a pair of side walls (12, 22) interconnecting the top and the base thereby forming a tubular structure has a carrying handle (H) extending upwardly from the top and locking tabs (50, 52, 54) which tie together facing panels (16, 18) at lower portions of said carrying handle to maintain the carrying handle in an upstanding position for use.
Patent CA-2043529-A1 (CA)
Inventor: LARPENT CHANTAL
IPC: C07C47/54
Filed: 1991-05-30
Abstract: L'invention concerne un procédé pour former un milieu dans lequel le peroxyde d'hydrogène agit sur un hydrocarbure dont au moins un atome de carbone porteur de liaisons C-H est à l'état d'hybridation de type sp3, en présence d'un catalyseur, caractérisé en ce que l'on procède au mélange de deux microémulsions de type "eau dans huile" avec comme huile ledit hydrocarbure, la première contenant du peroxyde d'hydrogène, la seconde un sel ou un dérivé oxygéné colloïdal d'un métal de degré d'oxydation multiple et capable de conduire à des oxydes hydratés, de façon à obtenir une troisième microémulsion de même type que des deux premières. L'invention concerne également une microémulsion obtenue par ce procédé et un procédé d'activation oxydante de liaisons carbone-hydrogène dont l'atome de carbone est à l'état d'hybridation de type sp3 dans un hydrocarbure par action H2O2 sur l'hydrocarbure.
Patent CA-2044008-A1 (CA)
Title: Laminated wafer
Inventor: CAVANAGH PAUL A
IPC: A21D13/00
Filed: 1991-06-06
Abstract: Laminated bread wafers are produced by fusing at least part of the opposing outer friable crust of two (or more) sheets of bread.  Each sheet is composed of outer friable crusts surrounding a center which is soft and porous relative to the crusts.  Specifically, one outer crust of a first sheet and one outer crust of a second sheet are moistened by applying droplets of water (e.g. from sprayed water or steam) sufficient to render them fusable.  Thereafter, the moistened outer crusts are pressed together to fuse them.  Alternatively, an aqueous paste is applied between at least part of an outer crust of the first sheet and at least part of an outer crust of the second sheet, and the sheets are pressed together to fuse them.  The resulting laminated bread product comprises multiple layers with a sealed edge, the layers being arranged in the following  order:  a top friable crust, a porous softer upper core  layer, a central fusion layer, a porous softer lower core layer, and a bottom friable crust.
Patent CA-2044676-A1 (CA)
Title: Pharmaceutical composition for rectal administration of active principles exhibiting a prevalently topical medication action at the colon level
Inventor: FRIGERIO GIULIANO
IPC: A61P31/04
Filed: 1991-06-14
Abstract: The invention provides a pharmaceutical composition for the rectal administration of active principles which exhibit a prevalently topical medication action at the colon level, characterised in that said active principles are formulated in a fluid vehicle able to generate a foam on rectal administration.
Patent CA-2044767-A1 (CA)
IPC: F24B1/188
Filed: 1991-06-17
Abstract: ABSTRACT    A heat exchanger for use in a fireplace assembly having walls surrounding a fire combustion chamber, an air passage provided therein and a flue assembly for exhausting combustion chamber effluent. The heat exchanger includes a housing adapted to be mounted in the fire combustion chamber and communicating with the air passage.  The housing has a first housing wall, a second housing wall and intermediate walls connecting the first and second housing walls.  The first housing wall has an opening therein to receive combustion chamber effluent.          The second housing wall has an opening for emission of combustion chamber effluent which is adapted for communication with the flue of the fireplace assembly for exhaust of the combustion chamber effluent from the fireplace assembly.  Intermediate walls connect the first and second housing walls in a spaced relation.  Diversion means are fixed in the housing to form at least one elongated heat exchange surface to guide and direct combustion chamber effluent through the heat exchanger along a tortuous path and provide extended heat transfer surfaces.  The extended heat transfer surfaces serve to provide heat to a first air conduit formed between the first housing wall and the diversion means, a second air conduit within the diversion means and a third air conduit formed between second housing wall and the diversion means.  The air passage is in fluid communication with the air conduits and the air conduits are in fluid communication with the atmosphere
Patent CA-2045086-A1 (CA)
Title: Binder system
Inventor: WAGLAND ALISON M
IPC: C08K3/00
Filed: 1991-06-20
Abstract: ABSTRACT           A composition which comprises at least one powdered or flaked material admixed with at least one thermally depolymeri-sable polycarbonate, or a solution thereof, the thermally depolymerisable polycarbonate containing the repeating units   where R1 and R2 each independently represents a hydrocarbon group containing from 4 to 30 carbon atoms, the said group having a group selected from a tertiary carbon atom, an allylic group, a propargylic group and a benzylic group attached directly to at least one oxygen atom.  The thermally depolymerisable polycarbonate can be used as a binder for materials such as powdered glass, powdered ceramic material, powdered metal or alloy.
Patent CA-2048304-A1 (CA)
Inventor: KUPCIKEVICIUS VYTAUTAS
IPC: B65B31/02
Filed: 1991-08-01
Abstract: Vacuum packaging method and apparatus for heat sealable bags in which a clamp is used to effect a temporary air-tight seal of an evacuated bag while the bag is transported through a region of atmospheric pressure to a heat sealer. After heat sealing to effect a permanent air-tight closure, the clamp is open and the bag removed. <IMAGE>
Patent CA-2052625-A1 (CA)
Title: Surface combustion burner
Inventor: NAKAMURA SUNAO
IPC: F23D14/14
Filed: 1991-10-02
Abstract: Abstract A surface combustion burner of a two-layer structure in which a layer of a burning resisting material such as a ceramic material and a supporting layer such as a metal fiber mat are arranged one upon another and joined.  There are provided a first layer (1) made of a burning resisting material and forming a gas combustion zone and a second layer (2) for supplying a gas to the first layer and supporting the first layer, and the first and second layers are sewed together with a burning resisting thread (3) to join them with each other. ( Fig. 1b )